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High-speed-Charting-Control/ChartDemo/ColourPicker/ColourPopup.cpp

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// ColourPopup.cpp : implementation file
//
// Written by Chris Maunder (chrismaunder@codeguru.com)
// Extended by Alexander Bischofberger (bischofb@informatik.tu-muenchen.de)
// Copyright (c) 1998.
//
// Updated 30 May 1998 to allow any number of colours, and to
// make the appearance closer to Office 97.
// Also added "Default" text area. (CJM)
//
// 13 June 1998 Fixed change of focus bug (CJM)
// 30 June 1998 Fixed bug caused by focus bug fix (D'oh!!)
// Solution suggested by Paul Wilkerson.
//
// ColourPopup is a helper class for the colour picker control
// CColourPicker. Check out the header file or the accompanying
// HTML doc file for details.
//
// This code may be used in compiled form in any way you desire. This
// file may be redistributed unmodified by any means PROVIDING it is
// not sold for profit without the authors written consent, and
// providing that this notice and the authors name is included.
//
// This file is provided "as is" with no expressed or implied warranty.
// The author accepts no liability if it causes any damage to you or your
// computer whatsoever. It's free, so don't hassle me about it.
//
// Expect bugs.
//
// Please use and enjoy. Please let me know of any bugs/mods/improvements
// that you have found/implemented and I will fix/incorporate them into this
// file.
#include "stdafx.h"
#include <math.h>
#include "ColourPicker.h"
#include "ColourPopup.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define DEFAULT_BOX_VALUE -3
#define CUSTOM_BOX_VALUE -2
#define INVALID_COLOUR -1
#define MAX_COLOURS 100
ColourTableEntry CColourPopup::m_crColours[] =
{
{ RGB(0x00, 0x00, 0x00), _T("Black") },
{ RGB(0xA5, 0x2A, 0x00), _T("Brown") },
{ RGB(0x00, 0x40, 0x40), _T("Dark Olive Green") },
{ RGB(0x00, 0x55, 0x00), _T("Dark Green") },
{ RGB(0x00, 0x00, 0x5E), _T("Dark Teal") },
{ RGB(0x00, 0x00, 0x8B), _T("Dark blue") },
{ RGB(0x4B, 0x00, 0x82), _T("Indigo") },
{ RGB(0x28, 0x28, 0x28), _T("Dark grey") },
{ RGB(0x8B, 0x00, 0x00), _T("Dark red") },
{ RGB(0xFF, 0x68, 0x20), _T("Orange") },
{ RGB(0x8B, 0x8B, 0x00), _T("Dark yellow") },
{ RGB(0x00, 0x93, 0x00), _T("Green") },
{ RGB(0x38, 0x8E, 0x8E), _T("Teal") },
{ RGB(0x00, 0x00, 0xFF), _T("Blue") },
{ RGB(0x7B, 0x7B, 0xC0), _T("Blue-grey") },
{ RGB(0x66, 0x66, 0x66), _T("Grey - 40") },
{ RGB(0xFF, 0x00, 0x00), _T("Red") },
{ RGB(0xFF, 0xAD, 0x5B), _T("Light orange") },
{ RGB(0x32, 0xCD, 0x32), _T("Lime") },
{ RGB(0x3C, 0xB3, 0x71), _T("Sea green") },
{ RGB(0x7F, 0xFF, 0xD4), _T("Aqua") },
{ RGB(0x7D, 0x9E, 0xC0), _T("Light blue") },
{ RGB(0x80, 0x00, 0x80), _T("Violet") },
{ RGB(0x7F, 0x7F, 0x7F), _T("Grey - 50") },
{ RGB(0xFF, 0xC0, 0xCB), _T("Pink") },
{ RGB(0xFF, 0xD7, 0x00), _T("Gold") },
{ RGB(0xFF, 0xFF, 0x00), _T("Yellow") },
{ RGB(0x00, 0xFF, 0x00), _T("Bright green") },
{ RGB(0x40, 0xE0, 0xD0), _T("Turquoise") },
{ RGB(0xC0, 0xFF, 0xFF), _T("Skyblue") },
{ RGB(0x48, 0x00, 0x48), _T("Plum") },
{ RGB(0xC0, 0xC0, 0xC0), _T("Light grey") },
{ RGB(0xFF, 0xE4, 0xE1), _T("Rose") },
{ RGB(0xD2, 0xB4, 0x8C), _T("Tan") },
{ RGB(0xFF, 0xFF, 0xE0), _T("Light yellow") },
{ RGB(0x98, 0xFB, 0x98), _T("Pale green ") },
{ RGB(0xAF, 0xEE, 0xEE), _T("Pale turquoise") },
{ RGB(0x68, 0x83, 0x8B), _T("Pale blue") },
{ RGB(0xE6, 0xE6, 0xFA), _T("Lavender") },
{ RGB(0xFF, 0xFF, 0xFF), _T("White") }
};
/////////////////////////////////////////////////////////////////////////////
// CColourPopup
CColourPopup::CColourPopup()
{
Initialise();
}
CColourPopup::CColourPopup(CPoint p, COLORREF crColour, CWnd* pParentWnd,
LPCTSTR szDefaultText /* = NULL */,
LPCTSTR szCustomText /* = NULL */)
{
Initialise();
m_crColour = m_crInitialColour = crColour;
m_pParent = pParentWnd;
m_strDefaultText = (szDefaultText)? szDefaultText : _T("");
m_strCustomText = (szCustomText)? szCustomText : _T("");
CColourPopup::Create(p, crColour, pParentWnd, szDefaultText, szCustomText);
}
void CColourPopup::Initialise()
{
m_nNumColours = sizeof(m_crColours)/sizeof(ColourTableEntry);
ASSERT(m_nNumColours <= MAX_COLOURS);
if (m_nNumColours > MAX_COLOURS)
m_nNumColours = MAX_COLOURS;
m_nNumColumns = 0;
m_nNumRows = 0;
m_nBoxSize = 18;
m_nMargin = ::GetSystemMetrics(SM_CXEDGE);
m_nCurrentSel = INVALID_COLOUR;
m_nChosenColourSel = INVALID_COLOUR;
m_pParent = NULL;
m_crColour = m_crInitialColour = RGB(0,0,0);
m_bChildWindowVisible = FALSE;
// Idiot check: Make sure the colour square is at least 5 x 5;
if (m_nBoxSize - 2*m_nMargin - 2 < 5) m_nBoxSize = 5 + 2*m_nMargin + 2;
// Create the font
NONCLIENTMETRICS ncm;
ncm.cbSize = sizeof(NONCLIENTMETRICS);
VERIFY(SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(NONCLIENTMETRICS), &ncm, 0));
m_Font.CreateFontIndirect(&(ncm.lfMessageFont));
// Create the palette
struct {
LOGPALETTE LogPalette;
PALETTEENTRY PalEntry[MAX_COLOURS];
} pal;
LOGPALETTE* pLogPalette = (LOGPALETTE*) &pal;
pLogPalette->palVersion = 0x300;
pLogPalette->palNumEntries = (WORD) m_nNumColours;
for (int i = 0; i < m_nNumColours; i++)
{
pLogPalette->palPalEntry[i].peRed = GetRValue(m_crColours[i].crColour);
pLogPalette->palPalEntry[i].peGreen = GetGValue(m_crColours[i].crColour);
pLogPalette->palPalEntry[i].peBlue = GetBValue(m_crColours[i].crColour);
pLogPalette->palPalEntry[i].peFlags = 0;
}
m_Palette.CreatePalette(pLogPalette);
}
CColourPopup::~CColourPopup()
{
m_Font.DeleteObject();
m_Palette.DeleteObject();
}
BOOL CColourPopup::Create(CPoint p, COLORREF crColour, CWnd* pParentWnd,
LPCTSTR szDefaultText /* = NULL */,
LPCTSTR szCustomText /* = NULL */)
{
ASSERT(pParentWnd && ::IsWindow(pParentWnd->GetSafeHwnd()));
ASSERT(pParentWnd->IsKindOf(RUNTIME_CLASS(CColourPicker)));
m_pParent = pParentWnd;
m_crColour = m_crInitialColour = crColour;
// Get the class name and create the window
CString szClassName = AfxRegisterWndClass(CS_CLASSDC|CS_SAVEBITS|CS_HREDRAW|CS_VREDRAW,
0,
(HBRUSH) (COLOR_BTNFACE+1),
0);
if (!CWnd::CreateEx(0, szClassName, _T(""), WS_VISIBLE|WS_POPUP,
p.x, p.y, 100, 100, // size updated soon
pParentWnd->GetSafeHwnd(), 0, NULL))
return FALSE;
// Store the Custom text
if (szCustomText != NULL)
m_strCustomText = szCustomText;
// Store the Default Area text
if (szDefaultText != NULL)
m_strDefaultText = szDefaultText;
// Set the window size
SetWindowSize();
// Create the tooltips
CreateToolTips();
// Find which cell (if any) corresponds to the initial colour
FindCellFromColour(crColour);
// Capture all mouse events for the life of this window
SetCapture();
return TRUE;
}
BEGIN_MESSAGE_MAP(CColourPopup, CWnd)
//{{AFX_MSG_MAP(CColourPopup)
ON_WM_NCDESTROY()
ON_WM_LBUTTONUP()
ON_WM_PAINT()
ON_WM_MOUSEMOVE()
ON_WM_KEYDOWN()
ON_WM_QUERYNEWPALETTE()
ON_WM_PALETTECHANGED()
ON_WM_KILLFOCUS()
ON_WM_ACTIVATEAPP()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CColourPopup message handlers
// For tooltips
BOOL CColourPopup::PreTranslateMessage(MSG* pMsg)
{
m_ToolTip.RelayEvent(pMsg);
// Fix (Adrian Roman): Sometimes if the picker loses focus it is never destroyed
if (GetCapture()->GetSafeHwnd() != m_hWnd)
SetCapture();
return CWnd::PreTranslateMessage(pMsg);
}
// If an arrow key is pressed, then move the selection
void CColourPopup::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
int row = GetRow(m_nCurrentSel),
col = GetColumn(m_nCurrentSel);
if (nChar == VK_DOWN)
{
if (row == DEFAULT_BOX_VALUE)
row = col = 0;
else if (row == CUSTOM_BOX_VALUE)
{
if (m_strDefaultText.GetLength())
row = col = DEFAULT_BOX_VALUE;
else
row = col = 0;
}
else
{
row++;
if (GetIndex(row,col) < 0)
{
if (m_strCustomText.GetLength())
row = col = CUSTOM_BOX_VALUE;
else if (m_strDefaultText.GetLength())
row = col = DEFAULT_BOX_VALUE;
else
row = col = 0;
}
}
ChangeSelection(GetIndex(row, col));
}
if (nChar == VK_UP)
{
if (row == DEFAULT_BOX_VALUE)
{
if (m_strCustomText.GetLength())
row = col = CUSTOM_BOX_VALUE;
else
{
row = GetRow(m_nNumColours-1);
col = GetColumn(m_nNumColours-1);
}
}
else if (row == CUSTOM_BOX_VALUE)
{
row = GetRow(m_nNumColours-1);
col = GetColumn(m_nNumColours-1);
}
else if (row > 0) row--;
else /* row == 0 */
{
if (m_strDefaultText.GetLength())
row = col = DEFAULT_BOX_VALUE;
else if (m_strCustomText.GetLength())
row = col = CUSTOM_BOX_VALUE;
else
{
row = GetRow(m_nNumColours-1);
col = GetColumn(m_nNumColours-1);
}
}
ChangeSelection(GetIndex(row, col));
}
if (nChar == VK_RIGHT)
{
if (row == DEFAULT_BOX_VALUE)
row = col = 0;
else if (row == CUSTOM_BOX_VALUE)
{
if (m_strDefaultText.GetLength())
row = col = DEFAULT_BOX_VALUE;
else
row = col = 0;
}
else if (col < m_nNumColumns-1)
col++;
else
{
col = 0; row++;
}
if (GetIndex(row,col) == INVALID_COLOUR)
{
if (m_strCustomText.GetLength())
row = col = CUSTOM_BOX_VALUE;
else if (m_strDefaultText.GetLength())
row = col = DEFAULT_BOX_VALUE;
else
row = col = 0;
}
ChangeSelection(GetIndex(row, col));
}
if (nChar == VK_LEFT)
{
if (row == DEFAULT_BOX_VALUE)
{
if (m_strCustomText.GetLength())
row = col = CUSTOM_BOX_VALUE;
else
{
row = GetRow(m_nNumColours-1);
col = GetColumn(m_nNumColours-1);
}
}
else if (row == CUSTOM_BOX_VALUE)
{
row = GetRow(m_nNumColours-1);
col = GetColumn(m_nNumColours-1);
}
else if (col > 0) col--;
else /* col == 0 */
{
if (row > 0) { row--; col = m_nNumColumns-1; }
else
{
if (m_strDefaultText.GetLength())
row = col = DEFAULT_BOX_VALUE;
else if (m_strCustomText.GetLength())
row = col = CUSTOM_BOX_VALUE;
else
{
row = GetRow(m_nNumColours-1);
col = GetColumn(m_nNumColours-1);
}
}
}
ChangeSelection(GetIndex(row, col));
}
if (nChar == VK_ESCAPE)
{
m_crColour = m_crInitialColour;
EndSelection(CPN_SELENDCANCEL);
return;
}
if (nChar == VK_RETURN || nChar == VK_SPACE)
{
EndSelection(CPN_SELENDOK);
return;
}
CWnd::OnKeyDown(nChar, nRepCnt, nFlags);
}
// auto-deletion
void CColourPopup::OnNcDestroy()
{
CWnd::OnNcDestroy();
delete this;
}
void CColourPopup::OnPaint()
{
CPaintDC dc(this); // device context for painting
// Draw the Default Area text
if (m_strDefaultText.GetLength())
DrawCell(&dc, DEFAULT_BOX_VALUE);
// Draw colour cells
for (int i = 0; i < m_nNumColours; i++)
DrawCell(&dc, i);
// Draw custom text
if (m_strCustomText.GetLength())
DrawCell(&dc, CUSTOM_BOX_VALUE);
// Draw raised window edge (ex-window style WS_EX_WINDOWEDGE is sposed to do this,
// but for some reason isn't
CRect rect;
GetClientRect(rect);
dc.DrawEdge(rect, EDGE_RAISED, BF_RECT);
}
void CColourPopup::OnMouseMove(UINT nFlags, CPoint point)
{
int nNewSelection = INVALID_COLOUR;
// Translate points to be relative raised window edge
point.x -= m_nMargin;
point.y -= m_nMargin;
// First check we aren't in text box
if (m_strCustomText.GetLength() && m_CustomTextRect.PtInRect(point))
nNewSelection = CUSTOM_BOX_VALUE;
else if (m_strDefaultText.GetLength() && m_DefaultTextRect.PtInRect(point))
nNewSelection = DEFAULT_BOX_VALUE;
else
{
// Take into account text box
if (m_strDefaultText.GetLength())
point.y -= m_DefaultTextRect.Height();
// Get the row and column
nNewSelection = GetIndex(point.y / m_nBoxSize, point.x / m_nBoxSize);
// In range? If not, default and exit
if (nNewSelection < 0 || nNewSelection >= m_nNumColours)
{
CWnd::OnMouseMove(nFlags, point);
return;
}
}
// OK - we have the row and column of the current selection (may be CUSTOM_BOX_VALUE)
// Has the row/col selection changed? If yes, then redraw old and new cells.
if (nNewSelection != m_nCurrentSel)
ChangeSelection(nNewSelection);
CWnd::OnMouseMove(nFlags, point);
}
// End selection on LButtonUp
void CColourPopup::OnLButtonUp(UINT nFlags, CPoint point)
{
CWnd::OnLButtonUp(nFlags, point);
DWORD pos = GetMessagePos();
point = CPoint(LOWORD(pos), HIWORD(pos));
if (m_WindowRect.PtInRect(point))
EndSelection(CPN_SELENDOK);
else
EndSelection(CPN_SELENDCANCEL);
}
/////////////////////////////////////////////////////////////////////////////
// CColourPopup implementation
int CColourPopup::GetIndex(int row, int col) const
{
if ((row == CUSTOM_BOX_VALUE || col == CUSTOM_BOX_VALUE) && m_strCustomText.GetLength())
return CUSTOM_BOX_VALUE;
else if ((row == DEFAULT_BOX_VALUE || col == DEFAULT_BOX_VALUE) && m_strDefaultText.GetLength())
return DEFAULT_BOX_VALUE;
else if (row < 0 || col < 0 || row >= m_nNumRows || col >= m_nNumColumns)
return INVALID_COLOUR;
else
{
if (row*m_nNumColumns + col >= m_nNumColours)
return INVALID_COLOUR;
else
return row*m_nNumColumns + col;
}
}
int CColourPopup::GetRow(int nIndex) const
{
if (nIndex == CUSTOM_BOX_VALUE && m_strCustomText.GetLength())
return CUSTOM_BOX_VALUE;
else if (nIndex == DEFAULT_BOX_VALUE && m_strDefaultText.GetLength())
return DEFAULT_BOX_VALUE;
else if (nIndex < 0 || nIndex >= m_nNumColours)
return INVALID_COLOUR;
else
return nIndex / m_nNumColumns;
}
int CColourPopup::GetColumn(int nIndex) const
{
if (nIndex == CUSTOM_BOX_VALUE && m_strCustomText.GetLength())
return CUSTOM_BOX_VALUE;
else if (nIndex == DEFAULT_BOX_VALUE && m_strDefaultText.GetLength())
return DEFAULT_BOX_VALUE;
else if (nIndex < 0 || nIndex >= m_nNumColours)
return INVALID_COLOUR;
else
return nIndex % m_nNumColumns;
}
void CColourPopup::FindCellFromColour(COLORREF crColour)
{
if (crColour == CLR_DEFAULT && m_strDefaultText.GetLength())
{
m_nChosenColourSel = DEFAULT_BOX_VALUE;
return;
}
for (int i = 0; i < m_nNumColours; i++)
{
if (GetColour(i) == crColour)
{
m_nChosenColourSel = i;
return;
}
}
if (m_strCustomText.GetLength())
m_nChosenColourSel = CUSTOM_BOX_VALUE;
else
m_nChosenColourSel = INVALID_COLOUR;
}
// Gets the dimensions of the colour cell given by (row,col)
BOOL CColourPopup::GetCellRect(int nIndex, const LPRECT& rect)
{
if (nIndex == CUSTOM_BOX_VALUE)
{
::SetRect(rect,
m_CustomTextRect.left, m_CustomTextRect.top,
m_CustomTextRect.right, m_CustomTextRect.bottom);
return TRUE;
}
else if (nIndex == DEFAULT_BOX_VALUE)
{
::SetRect(rect,
m_DefaultTextRect.left, m_DefaultTextRect.top,
m_DefaultTextRect.right, m_DefaultTextRect.bottom);
return TRUE;
}
if (nIndex < 0 || nIndex >= m_nNumColours)
return FALSE;
rect->left = GetColumn(nIndex) * m_nBoxSize + m_nMargin;
rect->top = GetRow(nIndex) * m_nBoxSize + m_nMargin;
// Move everything down if we are displaying a default text area
if (m_strDefaultText.GetLength())
rect->top += (m_nMargin + m_DefaultTextRect.Height());
rect->right = rect->left + m_nBoxSize;
rect->bottom = rect->top + m_nBoxSize;
return TRUE;
}
// Works out an appropriate size and position of this window
void CColourPopup::SetWindowSize()
{
CSize TextSize;
// If we are showing a custom or default text area, get the font and text size.
if (m_strCustomText.GetLength() || m_strDefaultText.GetLength())
{
CClientDC dc(this);
CFont* pOldFont = (CFont*) dc.SelectObject(&m_Font);
// Get the size of the custom text (if there IS custom text)
TextSize = CSize(0,0);
if (m_strCustomText.GetLength())
TextSize = dc.GetTextExtent(m_strCustomText);
// Get the size of the default text (if there IS default text)
if (m_strDefaultText.GetLength())
{
CSize DefaultSize = dc.GetTextExtent(m_strDefaultText);
if (DefaultSize.cx > TextSize.cx) TextSize.cx = DefaultSize.cx;
if (DefaultSize.cy > TextSize.cy) TextSize.cy = DefaultSize.cy;
}
dc.SelectObject(pOldFont);
TextSize += CSize(2*m_nMargin,2*m_nMargin);
// Add even more space to draw the horizontal line
TextSize.cy += 2*m_nMargin + 2;
}
// Get the number of columns and rows
//m_nNumColumns = (int) sqrt((double)m_nNumColours); // for a square window (yuk)
m_nNumColumns = 8;
m_nNumRows = m_nNumColours / m_nNumColumns;
if (m_nNumColours % m_nNumColumns) m_nNumRows++;
// Get the current window position, and set the new size
CRect rect;
GetWindowRect(rect);
m_WindowRect.SetRect(rect.left, rect.top,
rect.left + m_nNumColumns*m_nBoxSize + 2*m_nMargin,
rect.top + m_nNumRows*m_nBoxSize + 2*m_nMargin);
// if custom text, then expand window if necessary, and set text width as
// window width
if (m_strDefaultText.GetLength())
{
if (TextSize.cx > m_WindowRect.Width())
m_WindowRect.right = m_WindowRect.left + TextSize.cx;
TextSize.cx = m_WindowRect.Width()-2*m_nMargin;
// Work out the text area
m_DefaultTextRect.SetRect(m_nMargin, m_nMargin,
m_nMargin+TextSize.cx, 2*m_nMargin+TextSize.cy);
m_WindowRect.bottom += m_DefaultTextRect.Height() + 2*m_nMargin;
}
// if custom text, then expand window if necessary, and set text width as
// window width
if (m_strCustomText.GetLength())
{
if (TextSize.cx > m_WindowRect.Width())
m_WindowRect.right = m_WindowRect.left + TextSize.cx;
TextSize.cx = m_WindowRect.Width()-2*m_nMargin;
// Work out the text area
m_CustomTextRect.SetRect(m_nMargin, m_WindowRect.Height(),
m_nMargin+TextSize.cx,
m_WindowRect.Height()+m_nMargin+TextSize.cy);
m_WindowRect.bottom += m_CustomTextRect.Height() + 2*m_nMargin;
}
// Need to check it'll fit on screen: Too far right?
CSize ScreenSize(::GetSystemMetrics(SM_CXSCREEN), ::GetSystemMetrics(SM_CYSCREEN));
if (m_WindowRect.right > ScreenSize.cx)
m_WindowRect.OffsetRect(-(m_WindowRect.right - ScreenSize.cx), 0);
// Too far left?
if (m_WindowRect.left < 0)
m_WindowRect.OffsetRect( -m_WindowRect.left, 0);
// Bottom falling out of screen?
if (m_WindowRect.bottom > ScreenSize.cy)
{
CRect ParentRect;
m_pParent->GetWindowRect(ParentRect);
m_WindowRect.OffsetRect(0, -(ParentRect.Height() + m_WindowRect.Height()));
}
// Set the window size and position
MoveWindow(m_WindowRect, TRUE);
}
void CColourPopup::CreateToolTips()
{
// Create the tool tip
if (!m_ToolTip.Create(this)) return;
// Add a tool for each cell
for (int i = 0; i < m_nNumColours; i++)
{
CRect rect;
if (!GetCellRect(i, rect)) continue;
m_ToolTip.AddTool(this, GetColourName(i), rect, 1);
}
}
void CColourPopup::ChangeSelection(int nIndex)
{
CClientDC dc(this); // device context for drawing
if (nIndex > m_nNumColours)
nIndex = CUSTOM_BOX_VALUE;
if ((m_nCurrentSel >= 0 && m_nCurrentSel < m_nNumColours) ||
m_nCurrentSel == CUSTOM_BOX_VALUE || m_nCurrentSel == DEFAULT_BOX_VALUE)
{
// Set Current selection as invalid and redraw old selection (this way
// the old selection will be drawn unselected)
int OldSel = m_nCurrentSel;
m_nCurrentSel = INVALID_COLOUR;
DrawCell(&dc, OldSel);
}
// Set the current selection as row/col and draw (it will be drawn selected)
m_nCurrentSel = nIndex;
DrawCell(&dc, m_nCurrentSel);
// Store the current colour
if (m_nCurrentSel == CUSTOM_BOX_VALUE)
m_pParent->SendMessage(CPN_SELCHANGE, (WPARAM) m_crInitialColour, 0);
else if (m_nCurrentSel == DEFAULT_BOX_VALUE)
{
m_crColour = CLR_DEFAULT;
m_pParent->SendMessage(CPN_SELCHANGE, (WPARAM) CLR_DEFAULT, 0);
}
else
{
m_crColour = GetColour(m_nCurrentSel);
m_pParent->SendMessage(CPN_SELCHANGE, (WPARAM) m_crColour, 0);
}
}
void CColourPopup::EndSelection(int nMessage)
{
ReleaseCapture();
// If custom text selected, perform a custom colour selection
if (nMessage != CPN_SELENDCANCEL && m_nCurrentSel == CUSTOM_BOX_VALUE)
{
m_bChildWindowVisible = TRUE;
CColorDialog dlg(m_crInitialColour, CC_FULLOPEN | CC_ANYCOLOR, this);
if (dlg.DoModal() == IDOK)
m_crColour = dlg.GetColor();
else
nMessage = CPN_SELENDCANCEL;
m_bChildWindowVisible = FALSE;
}
if (nMessage == CPN_SELENDCANCEL)
m_crColour = m_crInitialColour;
m_pParent->SendMessage(nMessage, (WPARAM) m_crColour, 0);
// Kill focus bug fixed by Martin Wawrusch
if (!m_bChildWindowVisible)
DestroyWindow();
}
void CColourPopup::DrawCell(CDC* pDC, int nIndex)
{
// For the Custom Text area
if (m_strCustomText.GetLength() && nIndex == CUSTOM_BOX_VALUE)
{
// The extent of the actual text button
CRect TextButtonRect = m_CustomTextRect;
TextButtonRect.top += 2*m_nMargin;
// Fill background
pDC->FillSolidRect(TextButtonRect, ::GetSysColor(COLOR_3DFACE));
// Draw horizontal line
pDC->FillSolidRect(m_CustomTextRect.left+2*m_nMargin, m_CustomTextRect.top,
m_CustomTextRect.Width()-4*m_nMargin, 1, ::GetSysColor(COLOR_3DSHADOW));
pDC->FillSolidRect(m_CustomTextRect.left+2*m_nMargin, m_CustomTextRect.top+1,
m_CustomTextRect.Width()-4*m_nMargin, 1, ::GetSysColor(COLOR_3DHILIGHT));
TextButtonRect.DeflateRect(1,1);
// fill background
if (m_nChosenColourSel == nIndex && m_nCurrentSel != nIndex)
pDC->FillSolidRect(TextButtonRect, ::GetSysColor(COLOR_3DLIGHT));
else
pDC->FillSolidRect(TextButtonRect, ::GetSysColor(COLOR_3DFACE));
// Draw button
if (m_nCurrentSel == nIndex)
pDC->DrawEdge(TextButtonRect, BDR_RAISEDINNER, BF_RECT);
else if (m_nChosenColourSel == nIndex)
pDC->DrawEdge(TextButtonRect, BDR_SUNKENOUTER, BF_RECT);
// Draw custom text
CFont *pOldFont = (CFont*) pDC->SelectObject(&m_Font);
pDC->SetBkMode(TRANSPARENT);
pDC->DrawText(m_strCustomText, TextButtonRect, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
pDC->SelectObject(pOldFont);
return;
}
// For the Default Text area
if (m_strDefaultText.GetLength() && nIndex == DEFAULT_BOX_VALUE)
{
// Fill background
pDC->FillSolidRect(m_DefaultTextRect, ::GetSysColor(COLOR_3DFACE));
// The extent of the actual text button
CRect TextButtonRect = m_DefaultTextRect;
TextButtonRect.DeflateRect(1,1);
// fill background
if (m_nChosenColourSel == nIndex && m_nCurrentSel != nIndex)
pDC->FillSolidRect(TextButtonRect, ::GetSysColor(COLOR_3DLIGHT));
else
pDC->FillSolidRect(TextButtonRect, ::GetSysColor(COLOR_3DFACE));
// Draw thin line around text
CRect LineRect = TextButtonRect;
LineRect.DeflateRect(2*m_nMargin,2*m_nMargin);
CPen pen(PS_SOLID, 1, ::GetSysColor(COLOR_3DSHADOW));
CPen* pOldPen = pDC->SelectObject(&pen);
pDC->SelectStockObject(NULL_BRUSH);
pDC->Rectangle(LineRect);
pDC->SelectObject(pOldPen);
// Draw button
if (m_nCurrentSel == nIndex)
pDC->DrawEdge(TextButtonRect, BDR_RAISEDINNER, BF_RECT);
else if (m_nChosenColourSel == nIndex)
pDC->DrawEdge(TextButtonRect, BDR_SUNKENOUTER, BF_RECT);
// Draw custom text
CFont *pOldFont = (CFont*) pDC->SelectObject(&m_Font);
pDC->SetBkMode(TRANSPARENT);
pDC->DrawText(m_strDefaultText, TextButtonRect, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
pDC->SelectObject(pOldFont);
return;
}
CRect rect;
if (!GetCellRect(nIndex, rect)) return;
// Select and realize the palette
CPalette* pOldPalette = NULL;
if (pDC->GetDeviceCaps(RASTERCAPS) & RC_PALETTE)
{
pOldPalette = pDC->SelectPalette(&m_Palette, FALSE);
pDC->RealizePalette();
}
// fill background
if (m_nChosenColourSel == nIndex && m_nCurrentSel != nIndex)
pDC->FillSolidRect(rect, ::GetSysColor(COLOR_3DHILIGHT));
else
pDC->FillSolidRect(rect, ::GetSysColor(COLOR_3DFACE));
// Draw button
if (m_nCurrentSel == nIndex)
pDC->DrawEdge(rect, BDR_RAISEDINNER, BF_RECT);
else if (m_nChosenColourSel == nIndex)
pDC->DrawEdge(rect, BDR_SUNKENOUTER, BF_RECT);
CBrush brush(PALETTERGB(GetRValue(GetColour(nIndex)),
GetGValue(GetColour(nIndex)),
GetBValue(GetColour(nIndex)) ));
CPen pen;
pen.CreatePen(PS_SOLID, 1, ::GetSysColor(COLOR_3DSHADOW));
CBrush* pOldBrush = (CBrush*) pDC->SelectObject(&brush);
CPen* pOldPen = (CPen*) pDC->SelectObject(&pen);
// Draw the cell colour
rect.DeflateRect(m_nMargin+1, m_nMargin+1);
pDC->Rectangle(rect);
// restore DC and cleanup
pDC->SelectObject(pOldBrush);
pDC->SelectObject(pOldPen);
brush.DeleteObject();
pen.DeleteObject();
if (pOldPalette && pDC->GetDeviceCaps(RASTERCAPS) & RC_PALETTE)
pDC->SelectPalette(pOldPalette, FALSE);
}
BOOL CColourPopup::OnQueryNewPalette()
{
Invalidate();
return CWnd::OnQueryNewPalette();
}
void CColourPopup::OnPaletteChanged(CWnd* pFocusWnd)
{
CWnd::OnPaletteChanged(pFocusWnd);
if (pFocusWnd->GetSafeHwnd() != GetSafeHwnd())
Invalidate();
}
void CColourPopup::OnKillFocus(CWnd* pNewWnd)
{
CWnd::OnKillFocus(pNewWnd);
ReleaseCapture();
//DestroyWindow(); - causes crash when Custom colour dialog appears.
}
// KillFocus problem fix suggested by Paul Wilkerson.
#if _MFC_VER < 0x0700
void CColourPopup::OnActivateApp(BOOL bActive, HTASK hTask)
#else
void CColourPopup::OnActivateApp(BOOL bActive, DWORD hTask)
#endif
{
CWnd::OnActivateApp(bActive, hTask);
// If Deactivating App, cancel this selection
if (!bActive)
EndSelection(CPN_SELENDCANCEL);
}
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